822317 has 2 divisors, whose sum is σ = 822318. Its totient is φ = 822316.

The previous prime is 822313. The next prime is 822323. The reversal of 822317 is 713228.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 749956 + 72361 = 866^2 + 269^2 .

It is a cyclic number.

It is not a de Polignac number, because 822317 - 2² = 822313 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 822292 and 822301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (822313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411158 + 411159.

It is an arithmetic number, because the mean of its divisors is an integer number (411159).

2⁸²²³¹⁷ is an apocalyptic number.

It is an amenable number.

822317 is a deficient number, since it is larger than the sum of its proper divisors (1).

822317 is an equidigital number, since it uses as much as digits as its factorization.

822317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 23.

The square root of 822317 is about 906.8169605825. The cubic root of 822317 is about 93.6870914259.

The spelling of 822317 in words is "eight hundred twenty-two thousand, three hundred seventeen".